Table 1. Demographic and clinical characteristics of oocyte donors and recipients.
Donors (n=290) Recipients (n=296) p
Female age, years, mean±SD 30.6±3.3 43.1±4.9 <0.001*
Male age, years, mean±SD 35.3±6.1 42.9±6.6 <0.001*
Type of infertility, n (%)
Primary
Secondary
 
255 (87.9)
35 (12.1)
 
225 (76.1)
71 (23.9)
<0.001
Previous parity, n (%) 17 (5.9) 38 (12.8) 0.006
Previous spontaneous abortion, n (%) 31 (10.6) 72 (24.3) <0.001
Previous ectopic pregnancy, n 7 (2.4) 7 (2.3) 1.000
BMI, kg/m2, mean±SD 23.9±3.5 23.3±3.3 0.054*
Basal FSH, mUI/mL, median (25th-75th) 5.3 (3.6-8.9)§ 36.1 (21.2-76.9)|| <0.001
AFN, median (25th-75th) 18 (13-22) 0 (0-1) <0.001

BMI. Body mass index; FSH. follicle-stimulating hormone; AFN. Antral follicle count.
*Student t-test; Mann-Whitney U test; Pearson chi-square test. §n=36 ||n=116.